Polyetheretherketone (PEEK) is widely used in medical implants because of its high strength, radiolucency, and favorable cytocompatibility. However, it is often linked to fibrous tissue formation instead of osseointegration. In order to overcome this limitation, porous polymers enable bone ingrowth, but inherently lack mech. properties necessary for orthopaedic applications. Herein, we describe the characterization of an interconnected porous surface and the mech. performance of surface porous PEEK (PEEK-SP, Scoria) and PEEK-SP cervical interbody fusion devices. PEEK-SP was created using a patented processing technique. PEEK (Zeniva, Solvay Advanced Polymers) was extruded through a porogen under heat and pressure. The porogen was leached, leaving a porous surface layer of desired thickness. Micro-computed tomog. (μCT) was used to quantify the porosity, layer thickness, and pore size of the porous structure. Samples were mech. tested for tensile, shear, and tensile adhesion strength. Devices underwent further biomech. tests for expulsion and subsidence. μCT showed that devices had average 63.7% porosity, 220 μ pore size, and 0.69 mm pore thickness. Tensile strength and modulus were unaffected by the porous surface, but elongation to failure decreased. Interfacial shear strength was more than 20 MPa for PEEK-SP, which is greater than trabecular bone (10-15 MPa). PEEK-SP devices had a 70% higher expulsion force and greater subsidence yield force than a predicate device. Tensile adhesion strength was near 25 MPa for PEEK-SP sample, greater than the FDA required 22 MPa. Limiting porosity to the surface enabled the device to maintain its bulk mech. properties and meet the required performance. The devices were found to have properties substantially equivalent to or greater than predicate devices, leading to FDA 510(k) clearance in Sept. 2015.